A series of cooperative interlaboratory tests (RR, round robins) was conducted annuallly from 1997 to 2005 by the DIN 51834 Working Group on Tribological Tests using a Translatory Oscillation Apparatus (SRV™®) in cooperation with ASTM D02. The statistical analysis of these test results shows the influence of cleaning solvent and seizure criteria on the tribological properties regarding O.K.-load of the lubricants tested. Coefficients of friction and wear results are ranked according to the effects of ten different cleaning solvents, where isopropanol gave the lowest values and isoparaffin solvents the highest. The wear volume is more descriptive than the wear scar diameter. The effect of machine model on coefficients of friction varied from about 0.2% to 0.9% of mean. Wear results were not affected. The load step interval of 1, 3 or 6 minutes influences the pass load of solid bonded films.

Volume Subject Area:
General
Topics:
Tribology, Wear, Stress, Friction, ASTM International, Lubricants, Machinery, Oscillations, Statistical analysis
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Copyright © 2005
 by ASME
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